Trigger and safety device for firearms



May 30, 1933. R. v. FROMMER 1,91L859 TRIGGER AND SAFETY DEVICE FOR FIREARMS Filed Dec. 3, 3,931

Patented May 30, 1933 PATENT OFFICE RUDOLF v. mm3, OF BUDPEST, HUNGARY TBIGGER AND SAFETY DEVICE FOB IIREABHS Application led December 3, 1931, Serial No. 578,642, and in Hungary December 9, 1980.

The present invention relates to a fire arm the trigger and safety device of .which can easily be put together with the trigger late as an integral whole into the casing o the fire arm and can be removed from 1t 1n the same wa According to the invention the trigger plate constitutes the bottom of a .frame in which the trigger and safety device 1 s mounted, whereby not only a simple and light construction is attained, but also perfect bearings are provided for all the pivots of the trigger and safety device, and no locking mechanism is needed for these pivots. An-

other advantage of the invention is that the trigger and safety device is fully protected a ainst penetration of dust. Further objects og the invention will be described in connection with the drawing which shows one form of the invention by way of example.

Fig. 1 is a longitudinal sectional view of one part of a fire arm provided with the new trigger and safety device which is fixed in the fire arm, the hammer being cocked and the trigger locked.'

Fig. 2 is the same view but in the uncooked position of the hammer and unlocked position of the trigger, and with the trigger and safety device not fixed in the fire arm.

Fig. 3 is a partial side view of the fire arm.

Fig. 4 is a section taken on line IV--IV of Fig. 1.

The trigger and safety device is mounted in the frame 1 which can be pushed into the casing 2 of the fire arm from below. In order to fix the frame 1 in the casing 2 a slide 4 is provided on the bottom of the frame 1, this slide being shiftable in the guides 5 of the frame. The front end of the slide 4 bears on a projection 20 of the casing 2 and revents the front end of the frame from fal in out of the casing. The slide 4 may be shifte by the aid of its cavity 12 which is accessible through the opening 11 on the bottom of the casing 2 which constitutes the trigger plate,

so .that the slide can be moved by means of a pointed object for instance a cartridge.

\In order to fix the slide 4 in its locking osition it is preferably spring controlled.

or this purpose the spring 10 may be used,

which is situatedinside the hook 7 holdin the hammer 8 of the fire arm in its cocked position. The spring 10 presses its protecting sleeve 9 against a projection 22 of the slide 4, holding the latter in its locking osition. A shifting of the' front part o the frame 1 in the upward direction is prevented by a nose 13 against which the rib 14 of the frame bears.

In order to x the rear part of the frame the latter is provided with a rib 15 running in a crossward direction and resting on a projeotion 17 of a slide 16 shiftable in the casing 2. The slide 16 is secured in the casing by a bolt 21. 5

By shifting the slide 4 to the right, and by removing the bolt 21 and shifting the slide 16 also to the right, the frame l can easily be pulled out of the casing 2.

The axle 18 of the hammer 8 is pivoted in 70 the frame 1 and holds the hammer with its middle portion having a square cross section. For the purpose of cooking the hammer 8, the axle 18 is provided on its end projecting out of the casing 2, with a handle 19. In order to enable the frame 1 to be pushed into the casing 2 in spite of the end ortion of the axle 18 projecting to the outslde, a slot 23 is provided in the side wall of the casing, said slot being covered by the wall of the frame 1 in such a way that no dust or impurities can penetrate in the interior of the fire arm at this place.

It will be understood that except the axle 18 of the hammer, all the pivots of the trig- 85 ger and safety device are pivoted only in the side walls of the frame 1; so it is superfluous to lock the pivots against falling out by means of screw-threads or the like, as the walls of the casing 2 fully prevent them from leav- 9 lng their place. This fact greatly facilitates the manufacturing of the lire arm according to the invention.

I claim:

In a fire arm a casing, a trigger and safety de vice having a hammer and situated within said casing, a frame containing said trigger and safety device and adapted to be easily put into and removed from said casing, the bottom of said frame forming the trigger plate 10 of erm, e slide provided saidN unanime-nd adapted to x the front end of seid e, mother slide provided in the interior of said casing and adapted to x the rear end of the frame, l. hook adapted to x seid hammer inthe cocked position, a s ring situated in the interior of said hook an controlling the movements of said slide fixing the front end of the frame. In testimony whereof I aix m5 si ature.

RUDOLF v. FR MEER. 

